The Valair Heavy Duty Upgrade Clutch Replacement Kit NMU70432-01-R is designed to work with the existing solid flywheel in your 2003-2010 Ford 6.0L/6.4L Powerstroke. Aftermarket organic clutches are generally better than the OEM clutch you get from your dealer. This is due to the better quality materials used, the quality of the manufacturing process, and QC. Some companies also offer higher plate loads as options to the standard plate thus giving the clutch better holding ability than its OE counterpart. Best suited to trucks without or only minor power modifications. Good for light towing at stock HP levels. Features: 13" x 1.375" HD Organic Kit Organic Facings HD Hub Rated @ 400HP 34000# Pressure Plate Kit Includes: Pressure Plate, Clutch Disc, Release Bearing, Pilot Bearing and Alignment Tool. Note: This Clutch Kit is intended for trucks that already have a solid flywheel conversion. If you do not currently have a solid flywheel, please see the complete kit below.